Typewriter-carrying-case lock



' Jan. `29, 1929:l

W. A. DOBSON TYPEWRITER CARRYING CASE Loox original Filed March 21, v1926 x l f 255:52; 61

Jam 29, 1929.

' 1,700,254 w. A. DoBsoN TYPWRITER- CARRYING CASE LOCK Original Filed Hatch' 21, 19225 5 SheetS-Sheet 2 /nven/ar:

Jan. 29, 1929. 1,700,254

w. A. DoBsoN TYPEWRITER CARRYING CASE LOCK original Filed, March 21, 192s s sheets-sheet 5 /m/emor.- WW VMM Cab Patented Jan. 29, 1929.

unirsi) STATES Parent ermee.

WILLIAM A, DOBSON, OF BRDGEPORT, CONNECTICUT, ASSIGNOR TO UNLERWOOD ELLIOTT FISHER COMPANY, 0F NEW' YORK, N. Y A CORPORATION OF DELAWARE.

TYPEWRITER-CARRYIN(Sr-CASE LOCK,

Original application iled March 21, 1923, Serial No. 626,457. Divided and this application filed Novembel 22, 1926.

This invention relates to carrying cases for portable typewriting machines. Such carrying cases usually consist of a cover and a base to which the machine may be secured, and to which the cover may also be locked.

I-Ieretofore the cover has been provided with hooks that necessitated placing the cover on end on a support, after which the base was tilted to set its rear end into the hooks.

Careless handling during this tilting of the base often caused injury to the paper-table or other of the carriage-parts of the machine by striking them against either the cover or its support. To overcome this, the method of attaching the cover p to the base has .been changed by this invention, so that it 1S no longer necessary to tilt the base or lift it from its support while assembling the cover thereon.

With the cover-fastening means provided herein, the base may be set iiaton a table or other support. The cover is then grasped by the handle and tilted in back of the base with its lower rear edge resting on the table, the cover is then drawn forward over the base until its rear edge strikes the rear edge of the base, and the fastening means becomes engaged. The front of the cover is then lowered., so as to overlap and enclose the edges of the base, and the locking means engaged. rl`hus it is only necessary to use one hand in placing the cover on the base and locking it thereto. By holding the handle of the cover with only one hand, the cover may readily be hooked to the base and also swung down and made to lock itself automatically to the base. In other words, the user may simply pick up the cover by its handle, both hook and lock the cover to the base, and walk away with the machine in his hand, all without releasing his grasp of the handle.`

Another object of the invention is to provide a combined locking and automatic latching means to retain the cover on the base.

Both the attaching means and the locking and latching means are simple in design, easily and rapidly assembled and installed, and inexpensive to manufacture, and yet are extremely ecient in performing their various functions.

This application is a division of my application Serial No. 626,457, filed March 21, 1923, (new raient No. 1,646,952, dated ber 1927). i Y

Serial No. 149,853.4

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a front elevation of a typewriter-carrying case, showing the cover locking andlatching means attached thereto.

Figure 2 is a view of a cross-section on the line 2--2 of Figure 1, showing the means for securing the cover of the case to the rear end of the base.

' Figure 3 is a front elevation of a portionv of a typewriter-carrying case, showing the coverpartly closed over the base, and showing the front escutcheon of the lock removed to disclose the lock mechanism.'

Figure 4 is a front elevation, similar to Figure 3, showing the cover fully'closed and latched.

Figure 5 is a view of a cross-section onthe line 88 0f Figure 4.

Figure 6 is a front elevation, similar to Figure 3, showing the cover fully closed, latched ,and locked.

Figure 7 is a view of a cross-section on the line 10-10 of Figure 6.

Figure 8 is a perspective view of all of the parts which make up the locking means for the cover of a typewriter-carrying case, showing the. method of assembling them in the cover.

Figure 9 is a perspective view of the rear escutcheon of the lock, which indicates the manner in which parts of the lock are assembled thereon.

Figure 10 is plan view of the latch-.actuating knob.

Figure 11 is a side elevation of the latchactuating knob, showing the head in section.

A typewriter 15, having a carriage 16, is fastened in a case 17, which is made up of a base 18 fitted with feet 19, and a cover 20 fitted with a handle 21. Corner-pieces 22 may be fastened inthe corners of the cover 2O to act as stops to limit the distancethat the cover 2O may be pushed over the base 18. In the rear edge of the base 18 are recesses 23, which extend from the top surface to the bottom surface of the base 18, where they join' adjacent concave recesses 24, in the bottom surface, as shown in Figure 2. Fastened in the recesses 23, by means of screws 25 are wear-plates 26 having bottom yedges 27 bent at an angle and to a concave .form to register with thezeeneave recesses r the T-shaped slot 45.

24 into which they extend. Rivets 28 hold strips 29 in position on the lower inside edge of the back of the cover 20 at points adjacent to the wear-plates 26. Prongs or detente 30, formed on the lower ends of the strips 29, are bent inwardly to engage the wear-plates 26, as shown in Figure 2.

ln assembling, the base is placed flat on a table. WVith its forward edge uptilted and its lower rear edge resting on the support, the cover 20 is grasped by its handle 21 and drawn forward over the typewriter and the base 18 until the prongs or detente 30 are engaged with the wear-plates 26. When the cover is lowered, the rear edge ot' the base 18 will be firmly held between the lower ends of the corner-pieces 22 and the prongs or detents 30.

rlhe iront ot the cover has an opening 31 in its lower edge, as shown in Figure 8, in which is positioned combined locking and automatic latching means 32, having a trent eseutcheon 33 and a rear escutcheon 34, connected by shouldered rivets 35 that pass through holes 36 in the escutcheons 33 and 34 and the cover 20. Located on the vertical axis of the front escuteheon 33, near its top edge, is an opening 37 into which is litted the shouldered front end of a barrel 38. The lower edge ot the opening 37 has a slot 39 depending therefrom to allow a hit 46 ot a key 41 to pass into the barrel 38. The lower edge of the front escutcheon 33 is bent backwardly to form a bottom 42, and upwardly to form upstanding edge 43, in back oit' which the lower edge of the rear escutcheon 34 is confined when assembled on the cover 20. In the bottom 42 of the front esoutcheon 33 is the head 44 of a T-shaped slot 45, the long leg 46 ot which extends upwardly into the upstanding edge 43, as shown in Figure 8. The iront edge of the base 18 is provided with a wear-plate 47, fastened in place by screws 48, and serving a support in which is fastened a latch-pin 49, which has a head 50 and a shank 51, which, during the latehing operation, as the cover is swung down to overlap and enclose the edges of the base, enter the head 44 and the long leg 46, respectively, of rilhe rear escutcheon 34 has an opening 52 on its vertical axis, near its top edge, corresponding with the opening 37 in the iront escutcheon 33, to receive the other shouldered end ot the barrel 38. To the left of, and approximately midway between, the opening 52 and the top edge of the rear escutcheon 34 is another opening 53 to receive a fiat-headed rivet 54, on which is pivoted a latch 55.` Tear its free end the latch 55 is provided with a limit-slot 56, which permits sidewise movement of the latch 55 on a -flatheaded limit-pin 57. Just above the limitslot 56, the latch 55 is provided with an offset pin 58, on which is seated a spring 59, which open slot 6() designed to receive the shank 51 of the latch-pin 49. A hook 61, formed on the tree end of the latch 55 by the open slot 60, serves to prevent upward movement of the cover 2O from the base 18 when the latch 55 is in latching position, and an inclined face 62, on the front or open side ot the hook 61, provides an automatic displacing means ilor the latch 55 when the cover 2O is lowered to position on the base 18. ln the back or closed part oi the hook 61, opposite the open slot 60, is a tapped hole 63 into which is screwed the threaded end 64 of a latch-oper ating pin 65. rlhe shank 66 oi the operating pin 65 passes through an operating slot 67 in the front escutcheon 33, and terminates in a thumbaiut 68 which is provided with a corrugated concave face 69.

When itis desired to merely latch the cover 26 without locking it, the various parts of the looking and latching means 32, already described, are in the positions shown in Figure 4.

To open the case, it is only required to move the thumb-nut 68 to the right, which will move the latch 55 in corresponding direction against the tension oi' the spring 59 and thereby disengage the hook 61 trom the latch-pin 49.

To lock the cover 2O in closed position on the base 18, the locking and latching means 32 is provided with a bolt 70 movably mountd in a bolt-case 71. AThe bolt-case 71 is provided with anchor-lugs 72, which are seated in corresponding anchoring slots 73 in the rear escutcheon 34. An opening in the bottoni of the holt-case 71, at 74, permits free passage of the bolt 70, and a stop 75, adj acent to the opening at 74, is designed to engage a long notch 76, near the lower end of the bolt 70, which terminates in a shoulder 77. rifhe shoulder 77 abutting against the stop serves to limit the downward movement oi the bolt 70. Janother long notch 78, near the upper end of the bolt 7 0, terminating in a shoulder 7 9, engages a stop 80 formed on the inside of the front face ot the bolt-case 71. ylhe shoulder 79 abutting against the stop 80 serves to limit the upward movement ot' the holt 70. The stops 75 and 80 engaging the long sides of the notches 76 and 78 also serve to hold the opposite side oi' the bolt 7 O against the barrel 38, so that the bit 40 or" the lrey 41 will register with shoulders 81 and 82 oi a key-notch 83 in the holt 70. rlhe bolt-case 71 is out away at 84 to give lree passage to the lreybit 40. Just below this cut at 84 on the bolt-case 71 is pin 85 to receive the other end of the spring 59 which holds the latch 55 in latching position. In the side of the bolt 70, opposite the hey-notch 83, are two tumbler-notches 86 and 87 to fil n ul

receive a detent 88 on a tumbler 89, which, in the preferred form, is made ot' a lealtspring.

To lock the cover 2O after latching it, with the parts of the locking and latching means 32 positioned as shown in Figure 4 of. the drawings, the key 41 is inserted in the 'barrel 38 and turned to the right. The bit Li() strikes the should er 82 of the key-notch 83 and forces the bolt 70 downwardly until a notch 90 near its lower end engages a Vflat surface 91 on the latch 55, thus preventing movement of the thumb-nut 68 to release the latch 49 from the hook 6l. The parts will then be in the positions shown in Figure 6, This action will release the detent 8S of the tumbler 89 froml the tumbler-notch 87 and seat it in the tumbler-notch 86, in which position it will tend to restrain all movement of the bolt 70, except that imparted by the key 4l.

Turning the key 4l to the left will bring the bit into engagement with the shoulder 8l of the key-notch 83,'and will torce the bolt 70 upwardly to release the latch 55 and restore the parts to the latching position shown in Figure 4.

Variations may` be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. A lock for a typewriter-carrying case including a baseboard and a cover, in combination, a latch-pin mounted on one edge of said base-board, latching means mounted in a wall of said cover to co-operate with said latch-pin to automatically latch said cover to said base-board when said cover is swung down to overlap and enclose the edges of said base-board, and means to lock said latching means to prevent the opening of said cover.

A lock for a typewriter-carrying caseincluding a baseboard and a cover, in combination, a wear-plate, having a latch-pin with an enlarged head mounted thereon, fastened to one edge of said baseboard, latching means mounted in a Wall of said cover to co-operate with said latch-pin to automatically latch said cover to said baseboard when said cover is swung down to overlap and enclose the edges of said baseboard, and means to lock said latching means to prevent the Opening of said cover.

8. A lock for a. typeWriter-carrying-case including a baseboard and a cover, in combination, a Wear-plate, having a latch-pin with an enlarged head mounted thereon, fastened to one edge of said baseboard, and latching means mounted in a Wall of said cover to co-operate with said latch-pin t0 automatically latch said cover to said baseboard when said cover is swung down to overlap and enclose the edges of said baseboard, said latching means including a latch movably mounted on said cover in a position to engage said latch-pin, a spring to hold said latch in operative position, and a thumbnut to move said latch against the action of said spring and out or" engagement With said edges of said baseboard, said latching means.

including a latch. movably mounted on said cover in a position to engage said latch-pin, a spring to hold said latch in operative position, and a thumb-nut to move said latch against the action of said spring and out of. engagement with said latch-pin, and holding means to lock said latching means to prevent the opening of said cover.

5, A lock for a typewriter-carrying case including a baseboard and a cover, in combination, a wear-plate,having a latch-pin with an enlarged head mounted thereon, fastened to one edge of said baseboard, latching means mounted in a wall of said cover to co-operate with said latch-pin to automatically latch said cover tosaid baseboard when said cover is swung down to overlap and enclose the edges of said baseboard, said latching means including a latch movably mounted on said cover in a position to engage said latch-pin, a spring to hold said latch in operative position, and a thumb-nut to move said latch against the action of said spring and out of engagement with said latch-pin, and hol-ding means to lock said latching means to prevent the opening of said cover, said holding means including a bolt movably mounted on said cover and capable of being moved into and out of engagement with said latch to prevent the movement of said latch out of engagement with said latch-pin, and a springtumbler to engage said bolt to either hold it in engagement or out of engagement with said latch.

6. In alock for a typewriter-carrying case including a baseboard and cover, in combination, a. ront escutcheon and a rear escutcheon mounted in a wall of the cover, a movable latch mounted on said rear escutcheon, a latch-actuating knob, a limit-pin to limit the move-ment ot said latch, a latch-restoring spring, a bolt enclosed in a bolt-case mounted on said rear escutcheon, a tumbler for preventing unintentional movement o' said bolt, a key-barrel to admit a key into said lock to displace said bolt, means to fasten said front and rear escutcheons to one another and to to enter a clearance recess in one of said escutcheons to displace and be engaged b Said latch.

7. ln a lock for a typeWrit-encarrying case, in combination, a front escutcheon, having openings to admit a key, a latch-pin, and the shank of a latch-actuating knob, into said lock, a rear escutcheon, a movable latch mounted on said rear escuteheon, said latch having a hook formed on its rtree end Vto 'engage a latch-pin and having an inclined surface on its free end to permit it to ride over and be displaced by Said latchpin, a latch-actuating' knob having a shank which passes thifough one of the openings in said front eecutcheon and is fastened in said latch, a limit-pin to limit the movement of said latch, said limit-pin having an enlarged head and a reduced shank which passes through a limit-slot in said latch and is astened in said ieai escutcheon, a latclii'esto1 ing spring te restore said latch to operating position to engage said latch-pin after having been displaced by said latch-pin, a bolt having a key-'slot to receive a key-bit and enclosed in a bolt-case mounted on said rear escutcheon, to be moved into and, out of engagement with said latch by means o a key either to hold said latch in engagement with said latch-pin against the action of said actuating knob ci' to permit movement of Said latch out et engagement with said latchpin by means of Said actuating knob, a tumbler in the shape of a leaf-spring and having a detent to engage tumbleinotches in said bolt to pi'event other movement of said bolt than that imparted thereto 'by the bit of a key, a keyfbaliel held between said front and i'eai cscutcheons in openings provided theteici' to euppoit a key while it ie being turned to actute smid bolt, rivets to tasten said rear and front cecutcheons to each other and to Said carrying' caee, and a latch-pin to displace and be engaged by said latch.

ILLIAM A. DOBSON. 

